With a wide adjustable operating range of 0

Use the "Test" pins on the circuit board to manually initiate a defrost cycle

Built as a reliable digital upgrade for legacy electromechanical thermostats

The A19ABC-4 is the direct functional replacement for the discontinued A19ABC-80

As an essential part of the heat exchanger front cover kit

Lochinvar & A.O. Smith 100208444 Valve Refrigerant With a wide adjustable operatingThe Lochinvar & A. O. Smith 100208444 Valve is a technical grade Temperature and Pressure Relief Valve designed for high capacity water heating and boiler systems. As a veteran preferred component, this 3 4" T&P Relief Valve is calibrated to lift at 150 PSI and 210F, providing critical safety by venting excess thermal expansion. It features a 3 inch element and a high efficiency flow rate rated at 1,912,000 BTU hr (1. 912mBTU), making it suitable for